I did the opposite once.
when I was a checkout chick at woolies, A girl came through my checkout, engaging in casual conversation I asked her about her weekend plans (usual response was "hitting town tonight - you?" "yeah same might cya around!" [total lie - I dont drink])
she responded with "Just bought fallout 3, so probs doing that all weekend"
me, being completely taken by shock responded "uhhh cool I guess" she went really red in the face, I felt bad.